Frederick winant



2W2 9km v i a (No Model.)

P. WIN-ANT.

BLIND STOP. No. 406,325. Patented July 2,1889.

witnesses fnvenlm UNITED STATES PATENT OFFICE.

FREDERICK \VINANT, OF NEIV YORK, N. Y.

BLIND-STOP.

SPECIFICATION forming part of Letters Patent No. 406,325, dated July 2,1889. Application filed February 6, 1889. Serial No. 298,806. (Nomodel.)

T0 at whom it may concern.

Beitknown that I, FREDERICK WINANT, of the city of New York, in theState of New York, have invented certain new and useful Improvements inWVindow-Shutter Attachments; and I do hereby declare that the followingis a full, clear, and exact description thereof, reference being had tothe accompanying drawings, forming a part of this specification.

My invention consists in a device which is to be inserted on thetrunnion of one of the slats of a window-shutter in cases where theslats turn too loosely in their trunnions and will not remain closed.

Several devices have heretofore been tried, but have not gone into usebecause of their complicated construction, or of their turning with theslats when in use, and thus marring the side frame of the shutter, andsome of them would fall off the trunnion after being a short time inuse.

My device is constructed so that it will not drop off of the trunnionand cannot turn with the movement of the slats.

In the drawings, Figure 1 represents a window-shutter having one of myimproved devices attached to the trunnion of one of the slats. Fig. 2 isa side view of my improved device detached from the windowshut-ter. Fig.3 is a view of the device, and Fig. 4 is an end view.

The device is made out of a disk of brass or other suitable metal, beingstruck up, as shown in the drawings, in its exterior 0011- tour,somewhat like ahorseshoe, with its ends a a approaching each other, asshown in Figs. 1 and 3 of the drawings. The opening at b is made of thesame size as the trunnion of the slat. The ends a a are bent one inadvance of the other, as shown at c c, Fig. 4, so as to permit of theends a a, being sprung onto the trunnion. It is evident from thisdescription that the device will not fall off of the trunnion when onceinserted thereon.

Now in order to better prevent the device from turning when the slatsare moved up and down, I place one or more prongs or projections d (1,(preferably two,) one upon each side of the device. These prongs may beformed on the device at time of cutting out the blank from a sheet ofmetal. These prongs are not, however, essential, becausein shaping upthe cut-out blank I prefer to give it a concavo-convex shape, as seen at6, Fig.

2. This will cause the device to have more spring or elasticity in itthan if it were shaped up as in the form of the shell of a button.

In Fig. 1 the device is seen as it is attached to the trunnion of one ofthe slats and in operation. It is apparent that in the movement of theslat, to the trunnion of which it is hung, the device cannot by anypossibility rotate, as the prongs d d are embedded in the side post f ofthe shutter. Neither will the device fall off of the trunnion g of theslat in case the prongs d cl are omitted or do not, if used, embedthemselves in the wood, because the narrow space between the inner endsa a, being less than,the diameter of the trunnion, will serve to stillhold the device onto the trunnion. These ends aa are placed in theposition shown in Fig. 4 at c cthat is, bentin opposite directioninorder to get the ends to pass over the trunnion. As soon as this isaccomplished, the ends then'are bent straight or in line with eachother. The concavo-convex form of the device, as shown ate, will giveelasticity to the body of the device, which will cause it to take up thespace between the end of the slat and the side post f of the shutter orblind, thus not permitting of any clearance between the end of such slator the side post and the interposed device, and always giving thenecessary friction on the end of the slat to retain in any desiredposition the whole series of slats of the shutter.

I claim A struck-up sheet-metal disk of concavoconvex shape 0, having anopening I), with the ends or points a a approaching each other,

for the purpose of retaining the disk on the trunnion of the slat,substantially as described.

FREDERICK WVINANT.

Witnesses:

A. M TODD, J. O. WARD.

